Pistol Shrimp Are One of the Loudest Animals in the World | Alien Ocean

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Video Credits:
Versluis, M., von der Heydt, A., Lohse, D., & Schmitz, B. (2001). On the sound of snapping shrimp. University of Twente Research Information. research.utwente.nl/en/public...
cFayho - Yellow Watchman Goby and Candy Stripe Pistol Shrimp Pair: • Yellow Watchman Goby a...
tomoyasu ami - MVI 8117: • MVI 8117
Kids Fun Science - Drops of water on a PENNY experiment / How many drops can fit on a penny?: • Drops of water on a PE...
Joey Slay Em - GIANT BLUE CRAB vs GIANT MANTIS SHRIMP! *Epic Battle Royale*: • GIANT BLUE CRAB vs GIA...
Sources:
hearing.health.mil/Prevention...
audiology-web.s3.amazonaws.co...
www.gcaudio.com/tips-tricks/d...
Hyžný, M., Kroh, A., Ziegler, A., Anker, A., Košťák, M., Schlögl, J., Culka, A., Jagt, J. W. M., Fraaije, R. H. B., Harzhauser, M., van Bakel, B. W. M., & Ruman, A. (2017). Comprehensive analysis and reinterpretation of Cenozoic mesofossils reveals ancient origin of the snapping claw of alpheid shrimps. Science Report, 181(4076), 1-10. doi:10.1038/s41598-017-02603-5
Ritzmann, R. (1973). Snapping Behavior of the Shrimp Alpheus californiensis. Science, 181(4098), 459-460. doi:10.1126/science.181.4098.459
Bohnenstiehl, D.R., Lillis, A., Eggleston, D.B. (2016). The Curious Acoustic Behavior of Estuarine Snapping Shrimp: Temporal Patterns of Snapping Shrimp Sound in Sub-Tidal Oyster Reef Habitat. PLOS ONE, 11(1), 1-21. doi:10.1371/journal.pone.0143691
Koukouvinis, P., Bruecker, C. & Gavaises, M. (2017). Unveiling the physical mechanism behind pistol shrimp cavitation. Science Report, 7(13994), 1-12. doi:10.1038/s41598-017-14312-0
McClure, M. R. (1996). Symmetry in Large Claws of Snapping Shrimp in Nature (Decapoda, Alpheidae), Crustaceana, 69(7), 920-921. doi: doi.org/10.1163/156854096X00321
Shimu, Q. I. N., Yang, Y., Junqi, Q. I. N., & Changchun, D. I. (2019, August). Research on the cavitation in the snapping shrimp: a review. In IOP Conference Series: Earth and Environmental Science (Vol. 310, No. 5, p. 052057). IOP Publishing.
Hughes, M. (1996). Size assessment via a visual signal in snapping shrimp. Behavioral Ecology and Sociobiology, 38(1), 51-57. doi:10.1007/s002650050216
Nolan, B. A., & Salmon, M. (1970). The behavior and ecology of snapping shrimp (Crustacea: Alpheus heterochelis and Alpheus normanni). Forma et functio, 2, 289-335.
Herberholz, J., & Schmitz, B. (1998). Role of Mechanosensory Stimuli in Intraspecific Agonistic Encounters of the Snapping Shrimp (Alpheus heterochaelis). The Biological Bulletin, 195(2), 156-167. doi:10.2307/1542823
Versluis, M. (2000). How Snapping Shrimp Snap: Through Cavitating Bubbles. Science, 289(5487), 2114-2117. doi:10.1126/science.289.5487.2114
Randall, J. E., Lobel, P. S., & Kennedy, C. W. (2005). Comparative Ecology of the Gobies Nes longus and Ctenogobius saepepallens, Both Symbiotic with the Snapping Shrimp Alpheus floridanus. Environmental Biology of Fishes, 74(2), 119-127. doi:10.1007/s10641-005-2138-3
Ritzmann, R. E. (1974). Mechanisms for the snapping behavior of two alpheid shrimp,Alpheus californiensis andAlpheus heterochelis. Journal of Comparative Physiology ? A, 95(3), 217-236. doi:10.1007/bf00625445
Lohse, D., Schmitz, B., & Versluis, M. (2001). Snapping shrimp make flashing bubbles. Nature, 413(6855), 477-478. doi:10.1038/35097152
Kingston, A. C., Lucia, R. L., Havens, L. T., Cronin, T. W., & Speiser, D. I. (2019). Vision in the snapping shrimp Alpheus heterochaelis. Journal of Experimental Biology, 222(21), jeb209015.
Kaji, T., Anker, A., Wirkner, C. S., & Palmer, A. R. (2017). Parallel saltational evolution of ultrafast movements in snapping shrimp claws. Current Biology, 28(1), 106-113.

[@OctopusLady]

Shoot. I realized about half an hour after I posted this video that I messed up one of the citations. At 4:05 and 9:41 I cited that video as being from "(Tomonari et al., 2017)" when it should be (Kaji et al., 2017) So apologies for the mistake there and in the future, I will definitely not be adding citations as the last thing I do before I post a video when I'm usually pretty exhausted!

[@Jnime]

Chiken pox

[@noneofyourbusiness4133]

Hey- please please do the eye one. This sounds super fuZZING EPIC!!!!

[@Thetemplar33]

I forgive you

[@martmart.]

allow me to nominate a better name. 7:38 more like Shrimpku Hadoken ⬇↘➡ ✊ = 🔥

[@SheruMuko]

My scream is 113 decibels.

[@bigmclargehuge8219]

Unpopular opinion: Shrimpoluminescence is the best word mankind has EVER made.

[@OctopusLady]

I am reporting this comment.

[@jacobgreengas7121]

It can't possibly be that because the word gastrocnemius exists

[@NoNameAtAll2]

I don't get why shrimpoluminescence is bad there's photoluminescence, activated by light and this is shrimp version of that, activated by shrimps

[@docvix]

Shrimp light

[@KU_Fallen]

The flash of light produced by the shrimp's cavitation bubble is described by "Sonoluminescence" (light from sound, or the speed of sound in water). Further, the light released from Sonoluminescent sources are most likely from the rapid deceleration of charged particles in the vapor, this is called Bremsstrahlung Radiation.

[@ahppa]

I'm so glad you brought up the mutualistic behavior of gobis and pistol shrimp! It's my favorite example by far. Since cavitation is an implosion, I'd like to vote for "Shrimplosion"

[@Pinkletters]

I just want to believe pistol shrimp keep the gobis like we keep pets. It's their guard dog... or fish. :D

[@SpookyShadyGemlin]

Why isn't Shrimplosion the signature move of Clawtizer?! It's perfect!

[@Sihgilanu]

@@Pinkletters I mean... the little movement the pistol shrimp does at the goby @ 12:01 looks a bit like scritches... so, maybe? 😂

[@Br3ttM]

The light from a collapsing cavitation bubble is sonoluminescence, so shrimpoluminescence is just a play on that. And yes, it is being underwater that allows sounds to be louder than that maximum listed. No matter how forcefully something is vibrating, there's only so much air to push around, but water is denser, so it can transmit more.

[@riverAmazonNZ]

Awesome, I love that!

[@pippinbloom]

Babe, wake up!! The Octopus Lady just uploaded!!

[@3DRC-707]

Fr

[@cringerevx]

/ ME

[@Peenyouwass]

hey, i'm only a couple of minutes into this video, and i just wanted to say that i think your dedication to providing peer-reviewed info is amazing, also your editing is very entertaining, just the overall production value is really up there i feel, and i sincerely hope your channel sees some rapid growth soon. now onto the actual video i go

[@ColinTimmins]

I agree, top quality content that should have more views then it currently does. Smarten up KZbin! 😊

[@GhostOfSnuffles]

I'm assuming the confusing thing about Mantis shrimp eyes tripping you up is the circular polarization? Since they're the only animal known that can see it there's no working surrogate to help explain it. As far as it can be understood/explained it's exclusive to the shrimp specifically because their front raptorial fins have cells that reflect circular polarized light. So more then likely it's used as a means to spot/communicate with others of their own kind. Considering they can kill each others with a single hit and are extremely aggressive it makes sense they need to be able to see and signal each other in such a way as to make sure there's as little confusion as possible. So if you're a Mantis shrimp that sees something reflecting that specific type of light it's certainly another Mantis shrimp.... Or a scientist messing with you. The only other notable features of their eyes is that their compound eyes are split into three horizontal rows with each row being dedicated to picking up light of different wavelengths. The topmost row of each eye is dedicated to 300-500-ish nanometer wavelengths commonly associated with UV and blue light and the bottom most rows dedicated mostly to >720+ nanometer wavelengths. Basically their eyes evolved to specialize in the types of light that were more then likely to shine from above or be reflected from below. The middle row has most of the specialized circular polarization detection cells which would make sense since they'd want to be looking directly at each other when signaling. They have the widest spectrum of vision of any known animal. They can also adjust their eye stalks side to side to give themselves 360 degrees of vision or facing forward to enhance their depth perception. I'm not a scientist but i had a GF that was obsessed with ocean critters and would tell me all about them. It's been like 20 years and for whatever reason i still remember a ton of ocean lore that i'll never use...... I don't even like the ocean.

[@shayknox1023]

I love this comment 😊

[@WobblesandBean]

Hi, I am a scientist (marine biologist), and that's not _entirely_ accurate. Mantis shrimp eyes, while still being utterly fascinating, are not as out of this world as most people think. They cannot, in fact, "see better than any other animal" nor do they see colors no other animal can. Whereas they DO have multiple cones to see different wavelengths of color that don't exist in any other organism, those cones are all highly specialized to be really good at picking up just one wavelength of blue light. In other words, every band on their eyes is specifically tuned to one very narrow band on the visible light spectrum to better see in the ocean (and one for UV light, not unique to mantis shrimps), which is mostly bathed in blue light. So, no, they don't see the world in a magical, colorful way that us humans could never dream of. They are just insanely specialized to see the wavelengths of light that exist in the ocean.

[@BrooklyFire]

We need to learn to communicate with them to use them as a espectrofotometer

[@coryzilligen790]

@@WobblesandBean So, basically, rather than seeing fantastical colors, they're _really really good_ at differentiating various shades of blue?

[@user-xj8wy4uu1q]

Wow

[@ch1pnd413]

Yes, smaller guns are more quiet. Water causes sounds to be apparently louder because sounds travel further underwater due to decreased attenuation. Sounds in air and sounds in wanted are both measured in decibels but they aren’t really that comparable. It’s pretty complicated. 🤷🏼‍♀️

[@maker0824]

I am so not a gun enthusiast, but even I knew that a gunshot is quieter than a shotgun blast. When it comes to completely inconsequential things she makes so many mistakes.

[@CallmeL0Lfy]

aw the way the shrimp practically hold onto the goby is just adorable 😭

[@fish_wizard618]

Pistol shrimp also house one of my favorite species in the world, Synalpheus regalis. Synalpheus regalis is a species of pistol shrimp that live in a eusocial colony. They live almost their entire live in a host sponge that they never leave, live in a colony that can contain up to 300 individuals, have one breading female while the rest forage and protect the colony (like bees, ants, and naked mole rats), and their colony’s get so loud, that during wwII the US placed submarines near them to hide from sonar which helped win the war. There’s a love more interesting info on them just on wikipedia, so check it out if your interested.

[@benmcreynolds8581]

Mutualism in nature is the most amazing and adorably heartwarming thing that I have come across. It melts my heart and makes me unbelievably curious and full of wonder and hope. That amazing things do exist ☺️

[@kyrab7914]

Yes! There's just smthn that like your cats play together, or you give your shrimp a goby, or a baby goat makes a bunch of birds its pack and you're like "aww, friends!"

[@JakeJardashian]

Well said

[@thekatt...]

As an old lady I'm surprised at all I learn here. Your videos are so well done. Entertaining, super informative and fascinating. Your editing is impeccable. Well done Octopus lady ! 👋👋👋 😊💜🇨🇦

[@Stufunabu]

Hi! I know nothing about sea life, but I do know a lot about sounds! There might be a reason why the information you found about decibels was contradictory. Decibels are actually not a unit of measure by themselves, they need to be associated with a frame of reference, so there are many types of decibels. For example, dB SPLs have for reference sound pressure level. dB HLs will have for reference hearing levels, so basically they adjusted the scale to human hearing capabilities. Maybe your sources didn't distinguish these different scales :) dBSPLs will be higher that dBSLs. Also, some sources mix up the concepts of maximum pressure level with maximum capacity of human ear. Just because we stop being able to hear it doesn't mean more pressure wasn't produced! Sorry, this was long, and I might be wrong about some things. I'm just a very enthusiastic audiology student 😅😁

[@gillablecam]

You know a lot more about the confusing terminology than me, but I want to second the part you said about "loudest possible sound being the loudest possible percept by the human" being one of the sources of confusion. Depending on the citation, "sound" is either defined as air pressure or as a percept by a human, so there's definitely room for frustration as our ears don't hear everything.

[@Mrshotshell]

@@gillablecam there is a maximum sound pressure in any fluid as anything higher becomes a shockwave from the pressure waves stacking up. Sound travels much faster in water so you can have sound waves with more energy, aka louder

[@Marispider]

I had no idea about any of this, this is really helpful! So decibels are kind of like temperature degrees, then- 50 degrees could mean anything, you have to attach Celsius or Fahrenheit or Kelvin or something onto it to know whether that's hot, cold, or space-cold.

[@aidanconnor2274]

The "loudest sound possible" might be referring to the largely manmade barrier between what we call sound waves and what we call shock waves, as at a certain point, what once was sound just becomes a big, angry force

[@nonexistendworm3449]

Or a deathblow as apparently you don't need a shock wave to call somebody with sound.

[@angrypigs009]

You should do a video on zombie worms (they aren’t talked about much and it would be quite interesting) because animals in the deep areas are normally quite unique compared to animals near the surface (and in my opinion cooler) :)

[@user-wq1dt7li2x]

I kind of wish you had mentioned the eusocial pistol shrimp. I always thoight they were so interesting bc of how uncommon eusociality is in general, and in aquatic environments in particular

[@michaelc.4321]

Note about the dolphin fact, that's actually also an engineering problem for the propeller blades of ships. Over time, cavitation causes the blades to wear significantly which is a large part of the reason why blades look the way that they do. Another comment to be made is that measuring the force exerted by a given fluid is actually fairly tricky and highly dependent on the geometry of the object it's hitting. One can imagine that a concave section of an animal would have a high force exerted on it than a similar flat section as a result of the change in momentum induced on the fluid. Long story short, fluid dynamics is hard and the best you're probably gonna get is the jet's velocity. And finally ANOTHER ANOTHER comment. Sound is also weird and it also varies between sound underwater and sound on land. And yes, a shotgun blast is typically significantly louder than a typical firearm of another kind. The "loudest sound possible" applies to in air where that level of sound actual just becomes a shockwave and the notion of the intensity of sound breaks down. In water, you can have much "louder" sounds but the measurement of it is very janky. I'm personnally not super aware of how that works but the important takeaway is that measurement of sound intensity in and out of water are very different.

[@XcaptainXobliviousX]

she talks about her own personal battle with cavitation bubble battered pump impellers in the mantis shrimp video! and shows some properly dinged up boat propellers too.

[@kylegonewild]

Since sound is pressure waves causing vibrations, the medium in which it travels is important. There's nothing to "push around" with pressure in a vacuum which is why we generally say there's no sound in space, even though that's missing a bit of the picture. Travels slower underwater I'm pretty sure which allows for more pressure buildup. It's been a long time since I even brushed up against acoustics and waveforms so I couldn't give the specifics and I would take that with a shaker of salt.

[@quitethenon-binaryfuss8596]

okay. it is official. the pistol shrimp is my favorite animal. if not for the adorable mutualistic relationships they can form with _gobies_ (adorable name btw) then for the absolutely fascinating ways they use their "pistol"! like especially the communication part is just incredibly interesting and I cannot wait for us to understand and find out more about the how and why and aaaah I love them and thank you so much for introducing me to them!! needless to say: _great video_ PS: I think will add this video to a playlist where I keep all my comfort content because I feel absolutely delighted right now^^

[@Alienami]

The Mutalism reasoning I came up with: The pistol shrimp benefits of the fish taking the predators interest more (i.e. color, movement nosies which may be louder as well, tendency to flee drawing attention) The fish I suspect gets a good home and parasite removal (crabs using their small claws or mouth parts) And they all benefit from more eyes (and detection means/senses and algorithms of 2 species working together) for protecting one another, and a big one may be shared meals so everyone gets something ("The tide raises all ships" philosophy, we all win if we all win and Nash's game theory says basically cooperation is the best option, always, in games anyway.)

[@briangruenewald7536]

Hey, Octopus Lady! I’m new here, and it’s awesome to be here! Also, I’m a huge Pokémon fan, and (assuming you’re familiar with Pokémon) pistol shrimp are a clear inspiration for Clauncher and its evolution, Clawitzer. Also also, I remember reading something about mantis shrimp eyes having 126 (or 126,000) rods and cones, giving them a seemingly infinite range of color. Humans only have 3. THREE 😂 Anyway, again, I’m happy to have found your channel! Octopus is my favorite animal! Keep up the amazing content!

[@ch1pnd413]

I love your video! It reminds me of a college professor I had, who was using three dimensional, audio tracking of the Dolphins she would dive with. She was using it to correlate each dolphin with its vocalizations, and analyze which noises are made by which dolphins, and how often they use those vocalizations. It turns out young dolphins would create vocalizations that the older dolphins would not use until a certain percentage of all the young dolphins all used that vocalization, and then the adults would begin adopting that same vocalization. I completely can’t find a source on that. 🤦🏼‍♀️😭

[@katelillo1932]

Dolphins have slang?! 😮

[@doomsarbiter5317]

hey love your videos. it would be interesting to see more videos on mutualism in the ocean ex( boxer crab and cleaner shrimp)

[@Rodiroess]

I think the shrimp lets the goby watch out so the shrimp can totally focus on burrowing/shelter making. That way they both get shelter faster, while still being able to keep an eye out.

[@alexcarter8807]

Pistol shrimp are so cool! They're the source of all those popping sounds on the reef I used to love as a kid. I used to catch one and let it sit in my hand in a little water, and it was snap its claw and it would kind of sting.

[@PancakeMuncher919]

This lady makes science so fun and interesting unlike others, so glad I saw you on my recommendations.

[@jeremysellers7986]

Okay, I found your channel 2 nights ago and can't stop watching your videos. Your resources and citations are immaculate, and I love that you have respect for the creatures you talk about. This truly is an amazing channel. Thank you for providing this platform with a very enjoyable series. Keep at it because there's no way this channel shouldn't get bigger. P.S. - edit to correct a grammar mistake lol

[@elultimopujilense]

Another awesome fact: there is one species of pistol shrimp that is also eusocial, meaning they live in hives just like bees. They make one of the loudest sound in the ocean.

[@dickward1090]

if I’m remembering correctly, decibels is a measure of sound pressure which is created by a the sound waves via speed and amplitude. since sound travels (I wanna say 30%) faster in water, it becomes possible to increase the decibels. but each decibel is an order of magnitude louder than the previous so an increase of “only” 10dB is actually quite a lot.

[@tofu_golem]

I love shrimpoluminescence. It sounds like something a physicist would come up with.

[@pippinbloom]

Such a cool video, I really can't get enough. I would rename shrimpoluminescence to pistol shrimp flashbang 💥🎆

[@riven9179]

I would love to see a video on sharks! I love them so much and I think they’re not talked about enough in a positive light :)

[@basicallyalaptop5991]

I use your videos to relax to and sometimes sleep to, I wanted to study marine biology in college but I didn’t get good enough grades in school; I find anything marine related absolutely fascinating. Keep making these incredible videos x

[@roboticintelligenceunit1a652]

Pistol shrimp: “kaboom?” Evolution: “yes Rico, kaboom”

[@vxmpdowlll]

EEEEEEEEEEK!! I WAS SO EXCITED! I passed by your page yesterday and I was like "Is a video coming soon?"! I'm so happy you posted again! Great video.

[@TobiTheHuman]

Oh hell yeah. I needed this channel in my life. Awesome video! First video I have ever watched of you, and its so incredibly well made, informative and entertaining!

[@clockworkkirlia7475]

This is so good! I love pistol shrimp and I really like the in-depth look at the mechanics of it all! Also: Shrimp-Gobi Mutualism! Cute! Super cute!

[@soubigo]

ive been low key binge watching your vids and ive fallen in love with the cute lil skits you do XD like omg its so funny XD

[@valkyrie283]

I went back to watch part 1 before continuing this one, and did not regret it. I love your videos!

[@derekhasabrain]

I love how when The Octopus Lady finds out that a species has a certain beneficial trait (like how tuna and mackerel don’t have pain receptors on their fins) she never misses the opportunity to shit on the other species that don’t have that trait (like dolphins who can’t swim too fast or else they’ll make cavitation bubbles and hurt themselves)

[@murphylhunn]

I love your videos! Feels like im hangin out with my friend googling stuff. And i learned a bunch! 11/10 subbed

[@jennifermommy9373]

Just came here from seeing one of your tiktoks on reddit. I love marine biology and your videos Herr. Very informative and entertaining.

[@OctopusLady]

Oh! Can I ask where you saw it on Reddit?

[@duanesamuelson2256]

The loudest sound can depend on the media. In air, it's something like 183 db. It's because sound is a wave form and past a certain amplitude there are no longer waves, just a solid blast.

[@Silvianyay]

I can’t wait to watch blow up :) your videos are so well put together, and researched you deserve more hype

[@smallmoneysalvia]

I can't stop watching your videos, you make incredible content!

[@foldervtolvr]

And with this video I have discovered one of my new favorite youtubers. You have earned my subscription, and my admiration

[@jeanneelise5118]

i had no expectations on what to learn today. this was marvelous

[@angel21047]

I discovered your channel yesterday, and love it!

[@AsianboiiiGlenn]

Love that I found your channel. You’re doing great

[@zakugirl]

Well I've successfully watched all your videos at least once and many at least 2-3 times. Love you Octopus Lady!

[@maxximus6418]

Omg I swear the gobi-shrimp relationship is so damn adorable and the fact that they basically hold hands enforces that

[@3isr3g3n]

This is beyond infotainment, this really goes deeper than most channels!

[@ppelgutt]

Its such a nice experience listening to someone this excited about a topic. Very endearing

[@zebrababy9019]

Yea... I'm definitely binge watching your channel

[@heathermanago2347]

I love your vidoes and I just binged all of them in one sitting. I can't wait to see the next one!!!

[@27bees]

If we're just going for straight up utility, Cavitatious Luminescence would work

[@GentIemanThief]

7:38 That name does not need workshopping, it's already perfect.

[@table2392]

On the note of gunshots since the decibel charts didn't really specify I will. Theres of course a number of things that can influence how loud a firearm is going to be. Mainly how much powder is in the round, and whether or not the round is subsonic. That being the difference. Subsonic ammunition is going to be quieter than supersonic ammunition, it's still loud of course, but supersonic ammunition is faster than sound so when it is fired it breaks the sound barrier. The easiest way to put this into context is hearing someone fire a smaller round like 22. which is comparable to the size of a pill, and then hearing someone else fire a 7.62, which resembles a very thick crayon. The supersonic round is going to have a lot more oomph behind it.

[@zehark]

This instantly became my favorite video about my favorite sea creature, what a cool channel ❤️

[@waldtricki]

Your videos make me so happy.

[@Bob-jn8jt]

Just found your channel and subscribed. Great video!

[@nofatherfigure69420]

I love this channel sm

[@RyanRogers-gk2rc]

I haven’t laughed this much in a long time. Just started binge watching her episodes and her sense of humor is bringing tears to my eyes. 😂

[@zachb8012]

Mackerel and tuna also have much thinner fins which leaves a lot less room for... cavities. I think it's fair to suppose the chonkier fins of the dolphin are not only necessary to cope with a larger body, but the fact there are pain receptors may have a lot to do with the fact they converged on that body type from a water horse. That's amazing though, I would've never known it was the pain of cavitation that discourages them from swimming too fast.

[@MermmyDermmy]

Yay your back!

[@jarethkuo6122]

Did you know that some pistol shrimp are eusocial like anys or bees? They make colonies inside of sponges and they even have a queen!

[@anthonynye1747]

Im glad the youtube gods showered me with your channel. Followed! Love your content

[@steffanshurkin1123]

"Shrimpolumenscence" could be renamed something obvious, like "shrimp-splosion", but "Shrimp-nova" could be cool too. Shrimp could go all micronova.

[@hollypixie4285]

I love the thing with the gobys and the pistol shrimp. Maybe the goby fish is like their pet? Because I think that is freaking cute. Like how humans have kept dogs around as guards for a very long time... it's not like humans are blind or deaf or anything, it's just handy to have another species around to let you know what's up and to make you feel safer when you're out and about. Or maybe it's the other way around and the goby is keeping the shrimp as a dangerous little pet. 🤣

[@traveller2378]

Excellent work.

[@joshuahancock2079]

As a student trying to write my thesis, I really wish scientists did a better job at writing understandable papers. I understand we want to be accurate and specific, but why do we choose to be so gosh darn cryptic?! We write in a way that only we and like 10 other people with enough background can understand us. And that sucks. Thank you for doing the important work of translating scientific research for the public in a manner that is accurate, fun, and understandable.

[@Andrewbert109]

The shrimp holding the fish when they leave is so much omg

[@rolandabellano]

This video made my day!

[@mobztar]

i love your videos so much ❤️

[@itokyo5635]

I love this channel your so wise!!!

[@bustatron]

I had a pet pistol shrimp and yasha gobies. They were super cute always working together.

[@azzy4781]

I'm so glad to have stumbled upon your videos, as someone who aspires to be a marine biologist some day. Learning about all of these interesting creatures is really growing my fascination with the ocean.

[@nanwilder2853]

Good for you, Azzy… This planet needs all the Marine Biologists it can get! Wishing you the best of luck with your studies and career.

[@azzy4781]

@@nanwilder2853 Thank you! 😊

[@nanwilder2853]

@@azzy4781: You are most welcome!

[@jamesdriscoll_tmp1515]

My favorite shrimp. Thank you!

[@Borkyg0bb0]

The concept of eye scientists having their head be just a conglomerate of giant eyeballs is something I'm going to draw, right now

[@freshnorthwest6756]

great job by going out of your way to find the facts!!!

[@leopardbunny]

From what I understand, 194 decibels is roughly the point at which sound pretty much stops being "sound" as we perceive it and is moreso just a pressure wave that blasts your eardrums apart.

[@BUZZKILLJRJR]

Flashbang and concussion apperntly, very cool.

[@_fuluv_]

octopus lady i love listening to your voice so muchhh

[@the18thguyhere]

At 12:00 the pistol shrimp is petting the Gobie

[@MyFairDinkum]

I just CAN'T with your mafia bits! Lmao. You're the absolute BEST! 😂😂

[@magicpowers9240]

Apropos nothing, your avatar is one of the things that keeps me checking out the Next Octopus Lady Videos n.n 🐙 thanks for the educating and laugh inducing videos ma'am

[@daisypage9394]

0:07 This Guy reminds me of those pink and yellow maple moths :3 glad there’s an ocean invertebrate equivalent

[@danielmonroe9146]

tfw you fall in love with a voice and their love for nature

[@xanderdoesart69]

shrimplight!!!!!! simple and to the point :)

[@WTFcoconuts]

I love your videos

[@moorflower4118]

I love this!!!

[@uncontrollablefire]

I randomly found your TikTok, binged the marine biology in 1 minute series, and then followed you, and then subscribed to your KZbin

[@uncontrollablefire]

I edited hinged into binged

[@snapdragon9568]

your edits are so funny

[@Cornflakes1991]

the thing about "loudest possible sound" is that at 194dB the low pressure half of a sound would go below 0 bar, so below vacuum. so you cant have a continous sound that is louder than that because you cant have atmospheric pressure go lower than vacuum :D if your medium is something under more pressure than 1 bar you can have louder sounds or if you just have a positive pressure wave you can go much higher than that of course, as you arent limited upwards in practice.

[@Hei1Bao4]

To answer a question, different guns have different volumes. A .22 short subsonic round is quieter than a 9x19mm Luger round, which is quieter than a rifle round. And there are a significant variety of sizes of rifle rounds from .22 Long to 6.5CM to 50 BMG.

[@pokeman747]

94dB is the clip point of your hearing stuff doesn't really get perceivably louder but it does.

[@Minly147]

This channel has a future imo

[@daryush55]

Great video as always! If you still need some help with the video on eyes I may be able to help.

[@AlexAnom420]

it's kind of like a small thermoberic weapon of sorts... cuz when we talk about capsation we're talking about densities and when you explode high amount of pressure in any density there will be a push out effect and then a vacuum effect which is devastating.

[@shadowcard6923]

So guns typically range in the 140-180 range depending on caliber and other variables, an AR typically clocks in around 160-170, so when you get a ~30 decibel loss from a suppressor it’s super significant. 130 is kinda like a shout. But “loudness” is more subjective than decibels as usually it’s how the sound interacts with your ears and brain, so two different suppressors at the same decibel rating can be louder or quieter than the other

[@Cursemorc]

I love these animals!!